2011 Fiscal Year Final Research Report
Research on quadruple precision operation usable for scientific computation
| Project/Area Number |
21500031
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Software
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 4倍長精度演算 / 数学定数 / 平方根 / 数値計算アルゴリズム / 誤差解析 |
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| Research Abstract |
Application of quadruple precision numerical routines which was developed, evaluated and optimized through this research, we had computed Brun's constant up to 9-th digit following decimal point. Newly found number is not know until the completion of the Brun's number. Papers on this topic were prepared and submitted for the publication. Here, Brun's constant is the constant computed by the sum of(1/p+1/(p+2)) where p(>=2) and p+2 is prime numbers.
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